In this book, Sanjoy Mahajan shows us that the way to master complexity is through insight rather than precision. Precision can overwhelm us with information, whereas insight connects seemingly disparate pieces of information into a simple picture. Unlike computers, humans depend on insight. Based on the author’s fifteen years of teaching at MIT, Cambridge University, and Olin College, The Art of Insight in Science and Engineering shows us how to build insight and find understanding, giving... Topic: complex systems
Michael I. Posner Developing The Human Brain: Attention Networks and Self Regulation Lecture given at Florida Atlantic University on December 8, 2011. Hosted by: Center for Complex Systems and Brain Sciences, Charles E. Schmidt College of Science, FAU Topics: psychology, brain science, complex systems
Michael T. Turvey Theory of Perception-Action for All Organisms: What kind of Science Does it Entail? Lecture given at Florida Atlantic University on May 5th, 2011. Hosted by: Center for Complex Systems and Brain Sciences, FAU Topics: psychology, brain science, complex systems
This book is about complexity science, data structures and algorithms, intermediate programming in Python, and the philosophy of science:Data structures and algorithms: A data structure is a collection that contains data elements organized in a way that supports particular operations. For example, a dictionary organizes key-value pairs in a way that provides fast mapping from keys to values, but mapping from values to keys is generally slower.An algorithm is a mechanical process for performing... Topics: Computer Science, Programming, Complex Systems
Imaging Spectrometry data or Hyperspectral Imagery (HSI) acquired using airborne systems have been used in the geologic community since the early 1980 s and represent a mature technology (Goetz et al., 1985; Kruse et al., 1999). The solar spectral range, 0.4 to 2.5 m, provides abundant information about many important Earth-surface minerals (Clark et al., 1990). In particular, the 2.0 to 2.5 m (SWIR) spectral range covers spectral features of hydroxyl-bearing minerals, sulfates, and carbonates... Topics: COMPLEX SYSTEMS, QUANTUM ELECTRONICS, UNIVERSE, EXPLORATION
Human-Machine Organizational Systems and Web Services. Published 13 August 2002 by Gerard Arthus; released as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus. Topics: information technologies, evolution, economics, complex systems, gerard arthus, garthus, 2002
The Emergence of Machine/Human Organizations in the Context of Recent Advances in Information Technologies: A Descriptive Historical Perspective. Published during 2006 for a course I was taking at St. John's University, Jamaica, New York; released as Public Domain. Dimensions 8 1/2" width by 11" Height. E text created by Gerard Arthus. ( 1 reviews ) Topics: information technologies, evolution, economics, complex systems, gerard arthus, garthus
A concise overview in a 137-page contributed textbook on Interactomics, Genomics, Proteomics, protein-protein interactions, metabolic pathways, metabolic networks and Complex Systems Biology. DNA,Proteomics,Metabolic Networks,Interactomics and Complex Systems Biology Topics: DNA, proteomics, metabolic networks, Interactomics, Complex Systems Biology, CSB
'Theory and Analysis for Networked Social Systems' by Garry Robins, Psychological Sciences, University of Melbourne, Australia, used for the ISE100 course "Computer Competency'; Term 133 at National College, South Bend, Indiana. Released into the Public Domain by Gerard Arthus under a Creative Commons License. Keynote speaker Garry Robins discusses networked social systems at the 4th Annual Political Networks Conference and Workshops. June, 2011. Topics: garthus, garthus1, knowledge, internet, national college, information technology, complex systems
The IUE and optical spectral data on a supernova remnant in M33 was combined in order to determine the abundance of carbon in the interstellar gas of M33. New shock model calculations were used to guide the interpretation and a substantially lower value of the ratio c/o than was assumed previously for M33 may be necessary to explain the data. However, some inconsistencies in the observed and predicted line intensities indicate that the spectra may be partly contaminated by H II region emission... Topics: COMPLEX SYSTEMS, OPTIMIZATION, SYSTEMS ENGINEERING, SENSITIVITY, SYSTEMS ANALYSIS
'Designing Complex Systems For The 21st Century' by the Wei Chen at the 18th International Conference on Engineering Design, 15-18 August 2011; the Technical Unversity of Denmark, used for the ISE100 course "Computer Competency'; Term 133 at National College, South Bend, Indiana. Released into the Public Domain by Gerard Arthus under a Creative Commons License. Topics: garthus, garthus1, knowledge, internet, national college, information technology, complex systems
Historical Evolution in Conceptions of Reality; Notes. This is an abstract of a conference paper Published during 1992; released as Public Domain. Dimensions 8 1/2" width by 11" Height and weight 21grams, 5 pages. Etext created by Gerard Arthus. Topics: history, information technologies, evolution, economics, complex systems, gerard arthus, garthus
byLu, Liang-Hung; Bhattacharya, Pallab; Katehi, Linda P. B.; Ponchak, George E
A micromachined structure with reduced parasitics is proposed to enhance the resonant frequency and the quality factor (Q) of a spiral inductor. Inductors with various etch depths have been fabricated on a high resistivity Si substrate. Two-port S-parameters measurement is taken to characterize the performance of the inductors. With an etch depth of 20 micron, a fabricated 1.8 nH spiral inductor achieves a maximum resonant frequency of 25.6 GHz and a maximum Q of 20.2 at 14.5 GHz. This... Topics: COMPLEX SYSTEMS, PARAMETER IDENTIFICATION, MATHEMATICAL MODELS, SYSTEM IDENTIFICATION, SCATTERING,...
byDave Cormier, Stephen Downes, George Siemens, Jennifer Jones, CCK08 participants
This is the recording of the 6th uStream Friday session of the course "Connectivism and Connective Knowledge", commonly abbreviated as CCK08 (http://ltc.umanitoba.ca/connectivism). Speakers are Dave Cormier (moderator), Stephen Downes, George Siemens, and Jennifer Jones (injenuity) Topics: cck08, connectivism, theory, discussion, chat, chaos theory, complex systems
We present a research framework consisting of a standard chat environment and a set of analytical tools, able to detect some relevant characteristics of the group dynamics of interacting people. The analysis is independent of the semantic content of the exchanged messages, and the standardized interface avoids hard-to-detect non-verbal communications, still providing the expression of emotional contents. This study proposes a quantitative approach to the investigation of the cognitive small... Topics: Virtual Dynamics, Small Group, Social Psychology, Complex Systems
International Relations and The Evolution Of Cooperation Between Nations in The Absence of Centralized Authority. Submitted as a Final Paper for Pol 762; Long Island University, Greenvale, New York. Published 28 November 1987; by Gerard Arthus. Released as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus. Topics: information technologies, evolution, economics, complex systems, gerard arthus, garthus, 1987
Historical Evolution in Conceptions of Reality. This is an abstract of a conference paper Published during 1992; released as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext Topics: history, information technologies, evolution, economics, complex systems, gerard arthus, garthus
The presented research project consists of two major parts. First, the material flow in solid-state, friction stir, butt-welds as been investigated using a marker insert technique. Changes in material flow due to welding parameter as well as tool geometry variations have been examined for different materials. The method provides a semi-quantitative, three-dimensional view of the material transport in the welded zone. Second, a FSW process model has been developed. The fully coupled model is... Topics: PLANNING, TASKS, MANAGEMENT, COMPLEX SYSTEMS, TIME DEPENDENCE, TASK COMPLEXITY, GOALS
This publication documents the analytic system which provided the basis for the price determination of AT&T Message Toll Telephone Services under FCC regulation. The methodology was in operation from the early 1970's. Topics: regulated telephone service, AT&T, FCC, modeling of complex systems
byBathelmy, S. D.; Chincarini, G., et al; Cannizzo, J. K.; Gehrels, N.; Cusumano, G.; OBrien, P. T.; Vaughan, S.; Zhang, B.; Burrows, D. N.; Campana, S.
Contemporaneous BAT and XRT observations of two recent well-covered GRBs observed by Swift, GRB 050315 and GRB 050319, show clearly a prompt component joining the onset of the afterglow emission. The rapid slewing capability of the spacecraft enables X-ray observations immediately after the burst, typically 100 s following the initiation of the prompt y-ray phase. By fitting a power law form to the y-ray spectrum, we extrapolate the time dependent fluxes measured by the BAT, in the energy band... Topics: COMPLEX SYSTEMS, PROGRAM VERIFICATION (COMPUTERS), SYNCHRONISM, PROVING, COMPUTERS, SPECIFICATIONS,...
An Overview of Social Conflicts and Movements; 18 December, 1989; by Gerard Arthus released under the Creative Commons License as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus. Topics: gerard arthus, garthus, complex systems, nonlinear, sociology, collective mobilization, political...
In this paper we model a geometrically thin accretion disk interacting with an externally imposed, uniform, vertical magnetic field. The accretion flow in the disk drags and distorts field lines, amplifying the magnetic field in the process. Inside the disk the radial component of the field is sheared into a toroidal component. The aim of this work is to establish the character of the resultant magnetic field and its dependence on the disk's parameters. We concentrate on alpha-disks driven by... Topics: FAILURE, EXPERIMENTATION, DATA PROCESSING, INJECTION, EVALUATION, COMPLEX SYSTEMS, ARCHITECTURE...
Rotor design changes intended to improve tiltrotor whirl-flutter stability margins were analyzed. A baseline analytical model of the XV-15 was established, and then a thinner, composite wing was designed to be representative of a high-speed tiltrotor. The rotor blade design was modified to increase the stability speed margin for the thin-wing design. Small rearward offsets of the aerodynamic-center locus with respect to the blade elastic axis created large increases in the stability boundary.... Topics: NANOSATELLITES, GROUND OPERATIONAL SUPPORT SYSTEM, AUTONOMY, COMPLEX SYSTEMS, LUMINAIRES,...
Grazing flow and oscillatory flow in an orifice were studied in a plexiglass flow channel with a single side branch Helmholtz resonator using water as the fluid medium. An oscillatory flow was applied to the resonatory cavity, and color dyes were injected in both the orifice and the grazing flow field to record the motion of the fluid. The flow regimes associated with linear and nonlinear (high sound pressure level) impedances with and without grazing flows were recorded by a high-speed... Topics: COMPLEX SYSTEMS, DYNAMIC STABILITY, RELIABILITY ANALYSIS, DIFFERENTIAL EQUATIONS, HIERARCHIES,...
Why do we need time series of ozone and water vapor profiles at low altitude The degradation of air quality is a very serious environmental problem that affects urban and industrial areas worldwide. Air pollution injures human health and ecosystems, diminishes crop yield, and spoils patrimony and materials. The phenomena involved in air pollution are very complex. Once emitted into the atmosphere, (primary) pollutants are transported, dispersed, transformed by gas/solid phase change and... Topics: FAULT TREES, TOPOLOGY, ANALYSIS (MATHEMATICS), COMPLEX SYSTEMS, VACUUM SYSTEMS, HYDRAULIC...
A four-node, quadrilateral smoothing element is developed based upon a penalized-discrete-least-squares variational formulation. The smoothing methodology recovers C1-continuous stresses, thus enabling effective a posteriori error estimation and automatic adaptive mesh refinement. The element formulation is originated with a five-node macro-element configuration consisting of four triangular anisoparametric smoothing elements in a cross-diagonal pattern. This element pattern enables a... Topics: DESIGN ANALYSIS, FLUID DYNAMICS, MULTIDISCIPLINARY RESEARCH, MULTIDISCIPLINARY DESIGN OPTIMIZATION,...
Ru, Mo and Pd are very useful indicators for the identification of nucleosynthetic components. We have developed techniques for Pd isotopes, in an effort to check the extent of isotopic effects in this mass region and for a Pt-group element which is less refractory than Ru. Stable Pd isotopes are produced by the process only (102Pd), the s-process only (104Pd), the process only (Pd-110) and by both the r- and s-processes (Pd-105, Pd-106, Pd-108). Kelly and Wasserburg reported a hint of a shift... Topics: ENVIRONMENTAL MONITORING, BAYES THEOREM, FORMALISM, DYNAMICAL SYSTEMS, SYSTEMS SIMULATION, COMPLEX...
byYen, A. S.; Ming, D. W.; Gellert, R.; Clark, B. C.; Morris, R. V.; Rodionov, D.; Schroeder, C., et al
Data collected by the Mars Exploration Rover (MER) Spirit at Gusev Crater suggest that enhanced weathering of rocks and soils occurs beneath the immediate surface. We suggest that this alteration occurs over geological timescales under present climatic conditions and is a result of diurnal condensation of thin-films of water on subsurface materials. Additional information is included in the original extended abstract. Topics: AUTONOMY, COMPLEX SYSTEMS, COMPUTER PROGRAMMING, SOFTWARE DEVELOPMENT TOOLS, AUTONOMIC NERVOUS...
Nonlinear Dynamic Feedback Mechanisms Underlying Collective Mobilization and Other Sociological Processes; 10 October, 1989; by Gerard Arthus released under the Creative Commons License as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus. Topics: gerard arthus, garthus, complex systems, nonlinear, sociology, collective mobilization, political...
A unified theory for aircraft handling qualities and adverse aircraft-pilot coupling or pilot-induced oscillations is introduced. The theory is based on a structural model of the human pilot. A methodology is presented for the prediction of (1) handling qualities levels; (2) pilot-induced oscillation rating levels; and (3) a frequency range in which pilot-induced oscillations are likely to occur. Although the dynamics of the force-feel system of the cockpit inceptor is included, the methodology... Topics: ACTIVE CONTROL, MATHEMATICAL MODELS, COMPLEX SYSTEMS, NONLINEAR SYSTEMS, CONTROL SYSTEMS DESIGN,...
This supplemental issue of Aeronautical Engineering, A Continuing Bibliography with Indexes (NASA/SP-1999-7037) lists reports, articles, and other documents recently announced in the NASA STI Database. The coverage includes documents on the engineering and theoretical aspects of design, construction, evaluation, testing, operation, and performance of aircraft (including aircraft engines) and associated components, equipment, and systems. It also includes research and development in... Topics: COMPLEX SYSTEMS, SPACE EXPLORATION, SYSTEMS ANALYSIS, CONSTRUCTION, SYNCHRONISM, ALGORITHMS,...
When a Rocket Engine shuts down under a fuel rich environment, a significant amount of unburned RP-1 is trapped In the engine. It is necessary to clean the residual RP-1 prior to subsequent firing to avoid any explosion due to detonation. The conventional method is to dry RP-1 with inert gas such as Nitrogen or Helium. It is difficult to estimate the drying time unless the engine is adequately equipped with instruments to measure the trace of RP-1 during the drying process. Such instrumentation... Topics: COMPLEX SYSTEMS, REINFORCEMENT (PSYCHOLOGY), MOTIVATION, SELF STIMULATION, LEARNING, SIMULATION,...
byKhorrami, Meldi R.; Choudhari, Meelan M.; Jenkins, Luther N.; McGinley, Catherine B
Synergistic application of experiments and numerical simulations is crucial to understanding the underlying physics of airframe noise sources. The current effort is aimed at characterizing the details of the flow interaction between two cylinders in a tandem configuration. This setup is viewed to be representative of several component-level flow interactions that occur when air flows over the main landing gear of large civil transports. Interactions of this type are likely to have a significant... Topics: COMPLEX SYSTEMS, SPECIFICATIONS, MANUALS, PARALLEL PROGRAMMING, DISTRIBUTED PARAMETER SYSTEMS,...
The Solar Dynamic Power Module being developed for Space Station Freedom uses a eutectic mixture of LiF-CaF2 phase change salt contained in toroidal canisters for thermal energy storage. Results are presented from heat transfer analyses of the phase change salt containment canister. A 2-D, axisymmetric finite difference computer program which models the canister walls, salt, void, and heat engine working fluid coolant was developed. Analyses included effects of conduction in canister walls and... Topics: ADAPTIVE CONTROL, SIMULATION, COMPLEX SYSTEMS, CONTROL SYSTEMS DESIGN, MANIPULATORS, TRACKING...
byYabuta, H.; Williams, L.; Cody, G.; Pizzarello, S
The larger portion of the organic carbon in carbonaceous chondrites (CC) is present as a complex and heterogeneous macromolecular material that is insoluble in acids and most solvents (IOM). So far, it has been analyzed only as a whole by microscopy (TEM) and spectroscopy (IR, NMR, EPR), which have offered and overview of its chemical nature, bonding, and functional group composition. Chemical or pyrolytic decomposition has also been used in combination with GC-MS to identify individual... Topics: COMPLEX SYSTEMS, COMPUTER NETWORKS, SOFTWARE ENGINEERING, SYSTEMS ENGINEERING, SWARMING, TEAMS,...
Complexity and The Social Sciences; July 1991; by Gerard Arthus released under the Creative Commons License as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus. Topics: gerard arthus, garthus, complex systems, nonlinear, sociology, collective mobilization, political...
A book on Complex System dynamics, the study of the behaviour of complex systems, Dynamical system in mathematics Dynamic programming in computer science and control theory, Complex systems biology, Neurodynamics and Psychodynamics. Topics: An overview is presented of System dynamics, the study of the behaviour of complex systems,...
byFox-Rabinovitz, Michael S.; Takacs, Lawrence L.; Govindaraju, Ravi C.; Suarez, Max J
The development of and results obtained with a variable resolution stretched-grid GCM for the regional climate simulation mode, are presented. A global variable resolution stretched- grid used in the study has enhanced horizontal resolution over the U.S. as the area of interest The stretched-grid approach is an ideal tool for representing regional to global scale interaction& It is an alternative to the widely used nested grid approach introduced over a decade ago as a pioneering step in... Topics: AUTONOMY, TRACKING STATIONS, COMPLEX SYSTEMS, SYSTEMS ENGINEERING, SOFTWARE ENGINEERING, COMPUTER...
The purpose of this session was to study and identify alternatives to be recommended for the science networking areas of vision; roles and responsibilities; and technical approach and transition. This presentation is represented by charts and viewgraphs only. Topics: COMPLEX SYSTEMS, ERROR ANALYSIS, MARKOV PROCESSES, MATHEMATICAL MODELS, RELIABILITY ANALYSIS,...
The apparent paradox that the majority of impacts yielding Martian meteorites appear to have taken place on only a few percent of the Martian surface can be resolved if all the shergottites were ejected in a single event rather than in multiple events as expected from variations in their cosmic ray exposure and crystallization ages. If the shergottite-ejection event is assigned to one of three craters in the vicinity of Olympus Mons that were previously identified as candidate source craters... Topics: COMPUTERIZED SIMULATION, BOUNDARY CONDITIONS, ALGORITHMS, CRYSTAL GROWTH, EVALUATION, EXPERIMENT...
A new model for the polymer-pore interaction energy is introduced, based on an atomic-scale description of coulombic polymer-pore interaction. The enhanced drift velocity, experimentally observed for short polymers, is successfully accounted for, using this interaction energy model. For R/R(sub 0)>4 (R(sub 0)=7 angstroms) the translocation velocity approaches the free space drift velocity v(sub 0). This motivates the need to appropriately derivatize artificial nanopores, where... Topics: JAVA (PROGRAMMING LANGUAGE), SPACE EXPLORATION, COMPUTER PROGRAMS, SOFTWARE ENGINEERING, MARS...
bySunderland, P. B.; Yuan, Z.-G.; Krishnan, S. S.; Abshire, J. M.; Gore, J. P
Owing to the absence of past work involving flames similar to the Mir fire namely oxygen-enhanced, inverse gas-jet diffusion flames in microgravity the objectives of this work are as follows: 1. Observe the effects of enhanced oxygen conditions on laminar jet diffusion flames with ethane fuel. 2. Consider both earth gravity and microgravity. 3. Examine both normal and inverse flames. 4. Compare the measured flame lengths and widths with calibrated predictions of several flame shape models. This... Topics: RELIABILITY ANALYSIS, QUANTITATIVE ANALYSIS, GENETIC ALGORITHMS, COMPLEX SYSTEMS, PRODUCTIVITY,...
byClarke, Charles W.; Townsend, William; Boitnott, Richar
As part of the Rotary Wing Structures Technology Demonstration (RWSTD) program, a surrogate RAH-66 seat attachment fitting was dynamically tested to assess its response to transient, crash impact loads. The dynamic response of this composite material fitting was compared to the performance of an identical fitting subjected to quasi-static loads of similar magnitude. Static and dynamic tests were conducted of both smaller bench level and larger full-scale test articles. At the bench level, the... Topics: COMPLEX SYSTEMS, NETWORKS, SYSTEMS ENGINEERING, DISTRIBUTED PROCESSING, CONTROL THEORY, ARTIFICIAL...
byHoward, R. P.; Wormhoudt, J. C.; Whitefield, P. D
NASA's Atmospheric Effects of Aviation Project (AEAP) is developing a scientific basis for assessment of the atmospheric impact of subsonic and supersonic aviation. A primary goal is to assist assessments of United Nations scientific organizations and hence, consideration of emissions standards by the International Civil Aviation Organization (ICAO). Engine tests have been conducted at AEDC to fulfill the need of AEAP. The purpose of these tests is to obtain a comprehensive database to be used... Topics: PILOT PERFORMANCE, COMPUTER PROGRAMS, COMPLEX SYSTEMS, PERFORMANCE PREDICTION, FLIGHT CREWS,...